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In order to optimize the kinematic and dynamic performance of a 2-DoF planar parallel mechanism used in hybrid machines, a multi-objective optimization method is introduced. Based on the compare of the common kinematic analysis method and dynamic analysis method, the kinematic and dynamic performances evaluation indices which can be used in the performance optimization are introduced. Then a multi...
Traffic archival, an indispensable task for network analysis, has suffered from a huge amount of data. These rapid growing data can exceed storage capacity and thwart real-time analysis. In order to take insight from Internet traffic, bitmap indexing is applied in this field. However, raw bitmap indexes can consume more space and longer delay for loading larger indexes into memory. This leads to the...
The fast retrieval in archival traffic data is essential for network security and forensic analysis. A bitmap index is a data structure enabling fast search over large data collections in a limited time, but the space consumption is always a problem. WAH, PLWAH and COMPAX are proposed for compressing bitmap indexes for less storage. In this paper, a new bitmap index encoding scheme, named MASC, is...
Previously, we proposed efficient, scalable decentralized processing of SPARQL queries for an ad-hoc Semantic Web data sharing system and explored optimization techniques. However, it has proven to be difficult to measure the performance of the proposed query processing in a decentralized settings with existing tools. This is because assessments on SPARQL query performance were typically targeted...
On the base of designing the index system of evaluating competence, this paper empirically investigates the five dominating express enterprises of China with the data of survey, including EMS, Shunfeng, Shentong, Zhaijisong and Tiantian, in the approach of information entropy and gray relevant analysis. The influencing factors of competence are analyzed deeply, and hereby some suggestions to promote...
Given that the urban area is a complex ecosystem consisted of natural, societal and economic entities, urban ecosystem health evaluation is necessary for the scientific decision-making and proper ecological restoration. In this paper, the framework and methodology of urban ecosystem health evaluation based on emergy are proposed. The system of indices is developed including vigor, structure, resilience,...
A new LMI (linear matrix inequality)-based filter design methodology which can solve the multi-objective optimation problem for fault detection in LTI(linear time invariant) plants is presented. The main contributions consist of the formulation of the FD problem as a multi-objective optimization problem and the successful application in the aerocraft's closed-loop control system. The fault detection...
The paper describes a framework for time-critical rendering of graphics scenes composed of a large number of objects having complex geometric descriptions. An algorithm for mesh simplification both view-independent and view-dependent for original complex model was presented in this paper, First this paper uses edge collapse method with discrete curvature error metric to construct multi-resolution...
To management the risk of International Project Contracting where the chance and risk are accreted and the risk is bigger than the domestic engineering, the paper sets up the comprehensive evaluation system and a model of risk assessment by using the unascertained set for evaluating the risk of the international project contracting. Finally, the practicality and feasibility of the model are illustrated...
With the level of informatization is improving CRM has been used by enterprises universally and it makes the working efficiency has been improved. In order to improve the CRM performance needs to do a scientific and comprehensive evaluation. The evaluation on CRM performance is a complex systemic project. A CRM performance evaluation method based on fuzzy comprehensive evaluation is presented. Comprehensive...
In order to increase the CRM system implementation success rate in enterprise, enhance competitiveness and management level of the enterprise, enable the enterprise to better adapt to fierce market competition, an in-depth study on effect evaluation of the CRM system is conducted. The CRM performance evaluation method based on fuzzy comprehensive evaluation is proposed with the combination of the...
To assure justice and science of scientific and technological project evaluation, avoiding the corrupt transaction in the process of project evaluation, it is necessary to evaluation the experts' performance with a scientific method. The main factors that affect the experts' performance evaluation were analyzed. To avoid the effect of individual subjective judgment and favoritism on the result of...
A method which combines analytic hierarchy process (AHP) and fuzzy comprehensive evaluation (FCE) for the partner evaluation of the agile supply chain is purposed to avoid the influences of human being’s subjective judgments, preferences in the AHP on it. The weight of each evaluation index of the partners is confirmed, the partner evaluation information are processed by the FCE , the mathematical...
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